Region
Alabama
3
Arkansas
1
Astronautics
1
Atomic bomb
1
Attica
1
Austria
1
Berlin,
1
Birmingham
2
Boston
1
Canada
1
China
1
France
1
Germany
2
Germany -- History -- 1871-1918
1
Germany,
1
Great Britain
4
Great Plains
1
Haight Ashbury (San Francisco)
1
Iran
1
Little Rock
1
Love Canal Chemical Waste Landfill (Niagara Falls, N.Y.)
1
Massachusetts
1
Mississippi
1
Montgomery
1
New York (State)
1
Normandy
1
Selma
1
Soviet Union
3
Spain
1
Stock exchanges
1
United States
12
Vietnam
1